Two capacitors A and B with capacities 3 mF and 2 mF are charged to a potentialdifference of 100 V and 180 V respectively. The plates of the capacitors areconnected as shown in the figure with one wire from each capacitor free. Theupper plate of A is positive and that of B is negative. An uncharged 2 mFcapacitor C with lead wires falls on the free ends to complete the circuit.Calculate(i) the final charge on the three capacitors, and(ii) the amount of electrostatic energy stored in the system before and afterthe completion of the circuit